1
JEE Advanced 2016 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-0
Paragraph
Thermal decomposition of gaseous X2 to gaseous X at 298 K takes place according to the following equations:
X2 (g) $$\leftrightharpoons$$ 2X (g)
The standard reaction Gibbs energy, $$\Delta _rG^o$$, of this reaction is positive. At the start of the reaction, there is one mole of X2 and no X. As the reaction proceeds, the number of moles of X formed is given by $$\beta$$. Thus, $$\beta _{equilibrium}$$ is the number of moles of X formed at equilibrium. The reaction is carried out at a constant total pressure of 2 bar. Consider the gases to behave ideally. (Given R = 0.083 L bar K-1 mol-1)
Question
The equilibrium constant Kp for this reaction at 298 K, in terms of $$\beta _{equilibrium}$$, is
A
$${{8\beta _{equilibrium}^2} \over {2 - {\beta _{equilibrium}}}}$$
B
$${{8\beta _{equilibrium}^2} \over {4 - {\beta _{equilibrium}^2}}}$$
C
$${{4\beta _{equilibrium}^2} \over {2 - {\beta _{equilibrium}}}}$$
D
$${{4\beta _{equilibrium}^2} \over {4 - {\beta _{equilibrium}^2}}}$$
2
JEE Advanced 2016 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-0
Paragraph
Thermal decomposition of gaseous X2 to gaseous X at 298 K takes place according to the following equations:
X2 (g) $$\leftrightharpoons$$ 2X (g)
The standard reaction Gibbs energy, $$\Delta _rG^o$$, of this reaction is positive. At the start of the reaction, there is one mole of X2 and no X. As the reaction proceeds, the number of moles of X formed is given by $$\beta$$. Thus, $$\beta _{equilibrium}$$ is the number of moles of X formed at equilibrium. The reaction is carried out at a constant total pressure of 2 bar. Consider the gases to behave ideally. (Given R = 0.083 L bar K-1 mol-1)
Question
The INCORRECT statement among the following for this reaction, is
A
Decrease in the total pressure will result in formation of more moles of gaseous X
B
At the start of the reaction, dissociation of gaseous X2 takes place spontaneously
C
$${{\beta _{equilibrium}}}$$ = 0.7
D
Kc < 1
3
JEE Advanced 2016 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2
The CORRECT statement(s) for cubic close packed (ccp) three dimensional structure is (are) :
A
The number of the nearest neighbours of an atom present in the topmost layer is 12
B
The efficiency of an atom packing is 74%
C
The number of octahedral and tetrahedral voids per atom are 1 and 2, respectively
D
The unit cell edge length is $$2 \sqrt 2$$ times the radius of the atom
4
JEE Advanced 2016 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-2
Mixture (s) showing positive deviation from Raoult’s law at 35oC is (are)
A
carbon tetrachloride + methanol
B
carbon disulphide + acetone
C
benzene + toluene
D
phenol + aniline
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